M. Y. Lee, J. Park, and J. H. Oh*, ACS Appl. Electron. Mater. 2020, 2, 1, 9-18

[Selected as a Back Cover Paper]

The cover art depicts the fabrication of the core-shell p-n junction organic single crystals for organic phototransistors. The ambipolar core-shell crystals show balanced hole and electron mobilities and excellent optoelectronic characteristics. This ambipolar core-shell crystal can be used for various applications including high-performance integrated circuits and photosensors.